Forestry mapping and plant surveying by aeroscape are main tasks of plant resources investigation.
利用航空像片进行林业制图和植物测量是植物资源调查的主要任务。
参考来源 - 沙漠植物航空影像测量研究·2,447,543篇论文数据，部分数据来源于NoteExpress
利用航空像片进行林业制图和植物测量是植物资源调查的主要任务。
Forestry mapping and plant resources measurement in use of aerial photographs is the main task of plant resources survey.
现在科学家利用它们来测量某一范围的气候——比方说个别植物下的气候而不是灌木丛里的气候。
Scientists now use them to measure the climate in areas that would have been impractically small when sensors were more costly-say under individual plants rather than in a thicket.
长期以来，研究植物的科学家采用卫星测量植被的新鲜指数，即观测植物反射阳光值，预测植物的状态。 植物新鲜指数的变化是季节性的。
Scientists who study plants and trees from space have long relied on satellite-derived measures of “greenness”—that is, observations of the amount of sunlight reflected by vegetation.
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